Boiler and other furnace.



J. REAGAN.

BOILER AND OTHER FURNACE.

APPLICATION FILED MAY 5, 1916.

3 SHEETS-SHEET Patented Dec. 26

www3.

@HAMMAM l.. enrol J. REAGAN.

BOILER AND OTHER FURNACE.

APPLICATION FILED MAY 5. 191s.

Patented Dec.

www3..

s SHEETS-SHEET 2.

JAMES REAGAN, OF PHILADELPHIA, PIENNSYLVANIA.`

BOILER AND OTHER FURNACE.

Specification of Letters Patent'.

laisses.

Application filed May 5, 1916. Serial No. 95,705.

.To all whom t may concern: i

Beit known that l, JAMES lzen of the United States, residing atPhiladelphia, in the county of Philadelphia and State of Pennsylvania,have invented certain new and useful lmprovements in Boiler v and otherFurnaces, of which the following is a specification.

My invention relates to furnaces which are designed to-automaticallyserve the fuel and to similarly remove the ashes 4and other residualsubstances. Vented improvements in a furnace of this general type, aswill appear by referring to my application, Serial #28,742, dated May17, 1915, and to my Patent #1,171,803,

' dated February l5, 1916, in which are shown a hopper and anoscillatory fuel feeder, a'

stationary head blockconstituting the bottom of a' coking zone, a gratehaving reciprocatory stepped hollow bars, a rest grate, and means forremoving'ashes from the furnace.

The present invention involves improved means for disposing of theashes, and for sealing the discharge end of the furnace against theentrance of air other thanthat which is required for combustion and isadmitted under proper control.

The invention also involves details of construction, as will hereinafterappear.

In' the drawings Figure l .represents a' vertical longitudinal sectionof the furnace; Fig. 2 is a vertical transversesection on the line mofFig..1; Fig. .3 is an elevation of the water beam that in part supportsthe bridge wall, a portion being broken away to show the water pipestherein; Fig. 4 is va sectional view showing parts of the actuatingmechanism for the ash remover; Figs. 5, k6 and 7 are sectional viewsshowing the ejector for the ashes (called an ash drawer), andthe trackplates on which it moves; Fig. 8 is a plan view showing in full' anddotted lines the rest grate, the ash drawer and the actuating parts forsaid ash drawer.

A is the hopper.; B, the oscillatory fuel feeder; C, the head block; D agrate bar; E the rest grate; F,l the refractory arch.

The top step d of the grate is somewhat higher than theother steps, andthe parts are so related that when'the sections of the REAGAN, 'citilhave heretofore in! Patenten nee., 2e, 1ere.-

scent of 'such particles of fuel as fall over the` edge of the headblock. rlhe particles that have lodged on the upper face of the step (lwhen the grate bar was advanced are pushed off as the said Afaces arebrought into coincidence.

v The ash drawer Gr is composed of sections G arranged in a transverseseries and each section is an inverted hollow casting having slots g inits front and `rear walls, in which are disposed loosely mounted orfloating Scrapers g having holes g2, through which small retaining boltsg3, extend. Grooved rollers gt, carried by brackets and running on thetracks g5 of a track plate g, sustain and carry the sections. rlhesections are made unitary by bolts g, extending through adjacent sides.

The ash drawer is actuated by pull rods H driven by 'appropriatemechanism.- These pull rods are each pivoted at h to a pull piece hfhaving a square hole h2 receiving ay squarerod h3 that extendsthroughout the entire series of the sections G ofthe ash drawer G, theadjacentwalls of these sections being slotted from below at ktfor itsreception. The square rod h3 is secured in place by pairs of lugs [1.5,each integral with a'wall of one of the sections G', to. each of i whichpairs is bolted an' ear h6 of` a filler-l piece f1.7 for the slots h4.The ear h6 is of such dimension as to extend under the square rod h3from one lug h5 to the other 3 connects the drive gear and the disk butI this bolt under excessive load will be sheared off and avoid thebreaking of other and more important parts of the mechanism.

A pitman K is connected at its upper end to a pin 7c carried by theeccentric gear d, and is connected at its lowerend toa bellcrank leverL, which in turn is" connected to the pull rod Hby a pivot Z. Thebellcrank lever is mounted on a bracket Zn. The pitman contains atelescopic joint the parts of which arerespectively a. sleeve s, and arod 7a2, which in the absence of a pin 7c3, works idly. When the pinhowever, is `inserted the sleeve and the rod move in unison and motionis transmitted throughout the mits an oscillatory motion to thebell-crank .the rear end of the'grate.

entire train of mechanism, including pull rods H andthe ashdrawer G.`|The sleeve 7u lis slotted at 104 and 1a pin extending through rod 702moves in these slots and pre? vents relative rotation of the parts. Italso has the function of imparting motion to the sleeve 7c in onedirection. An encircling tube los covers the-slots. i

The rotation o'f the drive shaft I trans- L,`and a consequentreciprocatory motion to Athe pull-rod'I-I and the ash drawer G. The

amplitude of this motion is such as to cause .the ash drawer G toalternately retreat into the space G3 in the lower part-'ofthe bridgewall Mandvto advance a distance sufficient to force the ashes toward theash 4pit which it eventually reaches ,by passing through the space Ounder the back leg P of the grate. A protective sleeveA (.2, somewhatsmaller than ithe space O, loosely surrounds "the end of the pull-rod Hand moves with said rod.

This sleeve becomes full of ashes'which en' acter. The action of theash-drawer is confined substantially to its face'L area so that the mainbody of ashes in the space above it being practically*undisturbedremains as a perfect seal. ,L

" The ash-drawer G is grooved at'the top and front for the retentiontherein of a'protective body of ashes. I employ what I designate waterbeams, R, R, one R, being placed at the base of the bridge wall and theother' R being used as a support for the rest grate. These water beamsare made of castings containing wrought iron pipes which I have found tobe especially effective in resisting the intense heat `of the furnace.

The water beam Itis especially useful in preserving the proper sectionalarea of the space G3 in which the ash-drawer moves, which, if affected,will cause the retardation or. stopping of the movements of said drawer.The bridge wall M contains a built in arch S, and is inpart supported bya back beam T. I f necessary-to repair the parts adjacent the ashdrawer, the brick wall and the water and back beams below the arch S maybe entirely and conveniently 'removed and reassembled without disturbingthe main body of the bridge'wall.

, grate. dered certain.

I thus avoid rIhe above described devices, and espe- D cially theash-drawer and its associated parts, are of great importance as meansacting cooperatively with a furnace containing my improved fuel feederand coking cha1n. ber, although they are of. much Value `in any furnacewherein air is likely to be im.

properly admitted at the lrear end of the The removal of ashes isalsoLrenvThe operation of my furnace is, as will be-understood, underperfect control. rll`he fuel is fed to -it in a steady and regulatedvolume, the distillation of the'fuel -is gradual vand certain, thesupply-,of air isnot eX- cessive, the distribution of the air throughthe grate is uniform and combustion is unaffected by air admittedelsewhere, and the ashes are removed in such manner as to not interferewith the continualoperation of the furnace.- I have found by eXtensiveeX- periments that the ash removing device arranged as disclosed herein.is effective 4in preventing combustion beyond the grate and confining itto its proper zone, and that difficulties-heretofore experiencedv in theburning out of the parts behind the grate have been entirely surmountedby theimpro-vements in the ash removing device herein described.

Having thus fully described my tion what I claim, is-

1. The combination with an inclined grate adapted to `dischargesubstantially the whole body of ashes from the rear end thereof, abridge wall separated from saidl grate so invenvas to leave ,a space forthe ashes delivered from said grate,A and an ashLremover consisting of areciprocating ash-drawer adapted -to be retracted 'from and drawnthrough the ,lower portion of said body of 'ashes and a floor forsustaining the ashes over l which said ash-drawer reciprocates.'

2. The 'combination with an inclined grate adapted to dischargesubstantially the whole body of ashes from the rear end thereof, a

`bridge wall separated fro-m said grate so as to leave a space for theashes delivered from. said grate, and an ash-remover consisting vof areciprocating' ash-drawer having front and rear floating Scrapers, andadapted to be retracted from and drawn into the lower portion of a bodyof ashes.

3. An ash-drawer, the'body of which is adapted to move ashes and-'havingfront and rear floating Scrapers which have a free vertical movementindependent of the drawer.

4. An ash-drawer composed of transversely disposed sections incombination with a bar extending through 'said sections and pull rodsconnected to said bar.

. An ash-drawer having a pull rod in4 e combination with a looseprotective sleeve for said rod.

6. The combination of a grate adapted to names@ discharge substantiallythe whole body of ashes from the rear end thereof, a bridge wall spacedtherefrom, and an ash remover disposed below said bridge wall andadapted, when moved from below said bridge wall, to expel ashes from thespace between the grate and bridge wall and a floor for sustaining theashes over which said ash-drawer v reeiprocates.

7. A furnace having in combination a grate, a bridge wall, and ashremover and water beams disposed on either side of the space between thegrate and the bridge wall, the ash remover 'being contiguous to andprotected by one of the said water beams.

In testimony whereof l afX my signature in presence of a witness.

Witness J. W. CAssIDY.

JAMES REAGAN.

SCE

